Simplify cpu_relax() to a simple barrier(). Performance wise this doesn't
seem to make any big difference anymore, since nearly all lock variants
have directed yield semantics in the meantime.
Also this makes s390 behave like all other architectures.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
In case somebody attempted to open the device during online
processing the partition detection ioctl may have failed.
Added a retry loop to avoid not detected partitions.
Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Fix race for sleep_on requests leading to list corruption.
The SLEEP_ON_END_TAG is set during CQR clean up. Remove it from
interrupt handler to avoid the CQR from being cleared when it is
still in the device_queue.
Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
During device activation all paths could be lost and since the device
is not active it has no indication of this fact - hence the CQR will
time-out. The following cancelation might fail with -EINVAL because
CIO took over control and started path verification. In this case mark
the CQR as being CLEARED since it could not be running any more.
Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
The debug_unregister() function performs also input parameter validation.
Thus the test around the call is not needed.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
The common code ftrace_return_address(n), which is just a wrapper for
__builtin_return_address(n), will only work for n > 0 if CONFIG_FRAME_POINTER
is set to 'y'. Otherwise it will return 0.
Since on s390 we will never have that config option set to 'y'
ftrace_return_address() won't work at all for n > 0.
Luckily we always compile the kernel with -mkernel-backchain which
in turn means that __builtin_return_address(n) will always work.
So let ftrace_return_address(n) map to __builtin_return_address(n).
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Allow to specify the Compoment ID for Call Home via the kernel
configuration. This removes the need for distribution specific
patch against the sclp_async.c source file.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Translation exceptions should never happen, since that implies that
either we screwed up the page tables or missed to properly flush the TLB.
In both cases we should not just simply kill user space or walk the kernel
exception tables. Instead an oops or a panic (panic_on_oops) is the better
answer.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
It always confuses me to see the mixed instruction length code and
interruption code on user space faults, while the message clearly
says it is the interruption code.
So split the value and print both values separately. Also add the ILC
output to the die() message, so thar user and kernel space faults
contain the same information.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Add the new __NR_s390_pci_mmio_write and __NR_s390_pci_mmio_read
system calls to allow user space applications to access device PCI I/O
memory pages on s390x platform.
[ Martin Schwidefsky: some code beautification ]
Signed-off-by: Alexey Ishchuk <aishchuk@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
The floating point registers of a process that uses vector instruction are
not store into task->thread.fp_regs anymore but in the upper halves of the
first 16 vector registers.
The ptrace interface for the peeks and pokes to the user area fails to take
this into account. Fix __peek_user[_compat] and __poke_user[_compat]
to use the vector array for the floating pointer register if the process
has one.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Irq 0 is currently unused on s390. Since there is no reason to
do this start counting at the beginning and gain an additional
irq. Also correctly report the smallest usable irq number for
dynamic allocation.
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
add ioport_map stubs to make vfio build on s390.
Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Information how to use the GCC pre-processor, objdump, strace, top, etc.
are generic and not specific to the S390 architecture, so we do not need
this information in Debugging390.txt
Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
The information about the address spaces was completely outdated, since
the usage of the address spaces changed quite a bit since the early days.
This patch now updates the information about the usage of the address
spaces, mostly by using the description from Heiko's patch "rework uaccess
code - fix locking issues" (457f218095).
Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
The git commit c719f56092
"perf: Fix and clean up initialization of pmu::event_idx" removed
the PMU event index callback for all architectures but x86,
remove the initialization of the event index as well.
Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Fix the following warnings from the sparse code checker:
arch/s390/kernel/signal.c:374:38: warning: cast removes address space of expression
arch/s390/kernel/signal.c:374:65: warning: incorrect type in initializer (different address spaces)
arch/s390/kernel/signal.c:374:65: expected unsigned short [noderef] [usertype] <asn:1>*svc
arch/s390/kernel/signal.c:374:65: got void *
arch/s390/kernel/compat_signal.c:437:38: warning: cast removes address space of expression
arch/s390/kernel/compat_signal.c:437:65: warning: incorrect type in initializer (different address spaces)
arch/s390/kernel/compat_signal.c:437:65: expected unsigned short [noderef] [usertype] <asn:1>*svc
arch/s390/kernel/compat_signal.c:437:65: got void *
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
The page table lock is acquired with a call to get_locked_pte,
replace the plain spin_unlock with the correct unlock function
pte_unmap_unlock.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Fix the following warnings from the sparse code checker:
arch/s390/include/asm/pci_io.h:165:49: warning: cast removes address space of expression
arch/s390/pci/pci.c:476:44: warning: cast removes address space of expression
arch/s390/pci/pci.c:491:36: warning: incorrect type in argument 2 (different address spaces)
arch/s390/pci/pci.c:491:36: expected void [noderef] <asn:2>*addr
arch/s390/pci/pci.c:491:36: got void *<noident>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
s390s arch_setup_msi_irqs function ensures that we don't return with
more irqs than the PCI architecture allows and that a single PCI
function doesn't consume more irqs than the kernel is configured for.
At least the last check doesn't help much and should take the sum of
all irqs into account. Since that's already done by irq_alloc_desc
we can remove this check.
As for the first check we should use the value provided by the
firmware which can be less than what the PCI architecture allows.
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
The kernel build for s390 fails for gcc compilers with version 3.x,
set the minimum required version of gcc to version 4.3.
As the atomic builtins are available with all gcc 4.x compilers,
use the __sync_val_compare_and_swap and __sync_bool_compare_and_swap
functions to replace the complex macro and inline assembler magic
in include/asm/cmpxchg.h. The compiler can just-do-it and generates
better code with the builtins.
While we are at it use __sync_bool_compare_and_swap for the
_raw_compare_and_swap function in the spinlock code as well.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Analog to ptep_get_and_clear_full define a variant of the
pmpd_get_and_clear primitive which gets the full hint from the
mmu_gather struct. This allows s390 to avoid a costly instruction
when destroying an address space.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
After fixup_user_fault does not fail we have a writeable pte.
That pte might transform but it should not vanish.
Signed-off-by: Dominik Dingel <dingel@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Use NOKPROBE_SYMBOL() instead of __kprobes annotation.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
If the function tracer is enabled, allow to set kprobes on the first
instruction of a function (which is the function trace caller):
If no kprobe is set handling of enabling and disabling function tracing
of a function simply patches the first instruction. Either it is a nop
(right now it's an unconditional branch, which skips the mcount block),
or it's a branch to the ftrace_caller() function.
If a kprobe is being placed on a function tracer calling instruction
we encode if we actually have a nop or branch in the remaining bytes
after the breakpoint instruction (illegal opcode).
This is possible, since the size of the instruction used for the nop
and branch is six bytes, while the size of the breakpoint is only
two bytes.
Therefore the first two bytes contain the illegal opcode and the last
four bytes contain either "0" for nop or "1" for branch. The kprobes
code will then execute/simulate the correct instruction.
Instruction patching for kprobes and function tracer is always done
with stop_machine(). Therefore we don't have any races where an
instruction is patched concurrently on a different cpu.
Besides that also the program check handler which executes the function
trace caller instruction won't be executed concurrently to any
stop_machine() execution.
This allows to keep full fault based kprobes handling which generates
correct pt_regs contents automatically.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Introduce weak arch_check_ftrace_location() helper function which
architectures can override in order to implement handling of kprobes
on function tracer call sites on their own, without depending on
common code or implementing the KPROBES_ON_FTRACE feature.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
When storage keys are enabled unmerge already merged pages and prevent
new pages from being merged.
Signed-off-by: Dominik Dingel <dingel@linux.vnet.ibm.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
As soon as storage keys are enabled we need to stop working on zero page
mappings to prevent inconsistencies between storage keys and pgste.
Otherwise following data corruption could happen:
1) guest enables storage key
2) guest sets storage key for not mapped page X
-> change goes to PGSTE
3) guest reads from page X
-> as X was not dirty before, the page will be zero page backed,
storage key from PGSTE for X will go to storage key for zero page
4) guest sets storage key for not mapped page Y (same logic as above
5) guest reads from page Y
-> as Y was not dirty before, the page will be zero page backed,
storage key from PGSTE for Y will got to storage key for zero page
overwriting storage key for X
While holding the mmap sem, we are safe against changes on entries we
already fixed, as every fault would need to take the mmap_sem (read).
Other vCPUs executing storage key instructions will get a one time interception
and be serialized also with mmap_sem.
Signed-off-by: Dominik Dingel <dingel@linux.vnet.ibm.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Add a new function stub to allow architectures to disable for
an mm_structthe backing of non-present, anonymous pages with
read-only empty zero pages.
Signed-off-by: Dominik Dingel <dingel@linux.vnet.ibm.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Replace the s390 specific page table walker for the pgste updates
with a call to the common code walk_page_range function.
There are now two pte modification functions, one for the reset
of the CMMA state and another one for the initialization of the
storage keys.
Signed-off-by: Dominik Dingel <dingel@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
The kernel provided vdso functions do not get a stack frame from the
calling function and therefore may not change the stack contents, unless
they allocate space on their own.
This problem was exposed with 070b7be633 "s390/vdso: replace stck with
stcke" which writes 16 bytes instead of 8 bytes into the stack frame. These
additional 8 bytes however were indeed used by the caller (glibc) to save
data and therefore this data was corrupted by the vdso code.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
The last high frequency call site of the STCK instruction is
do_account_vtime. Replace it with the faster STCKF instruction.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Another week, another small batch of fixes.
Most of these make zynq, socfpga and sunxi platforms work a bit
better:
* Due to new requirements for regulators, DWMMC on socfpga broke past 3.17.
* SMP spinup fix for socfpga
* A few DT fixes for zynq
* Another option (FIXED_REGULATOR) for sunxi is needed that used to be selected
by other options but no longer is.
* A couple of small DT fixes for at91
* ...and a couple for i.MX.
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Merge tag 'armsoc-for-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Olof Johansson:
"Another week, another small batch of fixes.
Most of these make zynq, socfpga and sunxi platforms work a bit
better:
- due to new requirements for regulators, DWMMC on socfpga broke past
v3.17
- SMP spinup fix for socfpga
- a few DT fixes for zynq
- another option (FIXED_REGULATOR) for sunxi is needed that used to
be selected by other options but no longer is.
- a couple of small DT fixes for at91
- ...and a couple for i.MX"
* tag 'armsoc-for-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: dts: imx28-evk: Let i2c0 run at 100kHz
ARM: i.MX6: Fix "emi" clock name typo
ARM: multi_v7_defconfig: enable CONFIG_MMC_DW_ROCKCHIP
ARM: sunxi_defconfig: enable CONFIG_REGULATOR_FIXED_VOLTAGE
ARM: dts: socfpga: Add a 3.3V fixed regulator node
ARM: dts: socfpga: Fix SD card detect
ARM: dts: socfpga: rename gpio nodes
ARM: at91/dt: sam9263: fix PLLB frequencies
power: reset: at91-reset: fix power down register
MAINTAINERS: add atmel ssc driver maintainer entry
arm: socfpga: fix fetching cpu1start_addr for SMP
ARM: zynq: DT: trivial: Fix mc node
ARM: zynq: DT: Add cadence watchdog node
ARM: zynq: DT: Add missing reference for memory-controller
ARM: zynq: DT: Add missing reference for ADC
ARM: zynq: DT: Add missing address for L2 pl310
ARM: zynq: DT: Remove 222 MHz OPP
ARM: zynq: DT: Fix GEM register area size
- Revert one patch which increases I2C bus frequency on imx28-evk
- Fix a typo on imx6q EIM clock name
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Merge tag 'imx-fixes-3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into fixes
Merge "ARM: imx: fixes for 3.18" from Shawn Guo:
The i.MX fixes for 3.18:
- Revert one patch which increases I2C bus frequency on imx28-evk
- Fix a typo on imx6q EIM clock name
* tag 'imx-fixes-3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
ARM: dts: imx28-evk: Let i2c0 run at 100kHz
ARM: i.MX6: Fix "emi" clock name typo
Signed-off-by: Olof Johansson <olof@lixom.net>
Commit 78b81f4666 ("ARM: dts: imx28-evk: Run I2C0 at 400kHz") caused issues
when doing the following sequence in loop:
- Boot the kernel
- Perform audio playback
- Reboot the system via 'reboot' command
In many times the audio card cannot be probed, which causes playback to fail.
After restoring to the original i2c0 frequency of 100kHz there is no such
problem anymore.
This reverts commit 78b81f4666.
Cc: <stable@vger.kernel.org> # 3.16+
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Fix a typo error, the "emi" names refer to the eim clocks.
The change fixes typo in EIM and EIM_SLOW pre-output dividers and
selectors clock names. Notably EIM_SLOW clock itself is named correctly.
Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
[vladimir_zapolskiy@mentor.com: ported to v3.17]
Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Cc: Sascha Hauer <kernel@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
no sense having it a pointer - all instances have it pointing to
local variable in the same stack frame
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Pull MIPS fixes from Ralf Baechle:
"This is the first round of fixes and tying up loose ends for MIPS.
- plenty of fixes for build errors in specific obscure configurations
- remove redundant code on the Lantiq platform
- removal of a useless SEAD I2C driver that was causing a build issue
- fix an earlier TLB exeption handler fix to also work on Octeon.
- fix ISA level dependencies in FPU emulator's instruction decoding.
- don't hardcode kernel command line in Octeon software emulator.
- fix an earlier fix for the Loondson 2 clock setting"
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
MIPS: SEAD3: Fix I2C device registration.
MIPS: SEAD3: Nuke PIC32 I2C driver.
MIPS: ftrace: Fix a microMIPS build problem
MIPS: MSP71xx: Fix build error
MIPS: Malta: Do not build the malta-amon.c file if CMP is not enabled
MIPS: Prevent compiler warning from cop2_{save,restore}
MIPS: Kconfig: Add missing MIPS_CPS dependencies to PM and cpuidle
MIPS: idle: Remove leftover __pastwait symbol and its references
MIPS: Sibyte: Include the swarm subdir to the sb1250 LittleSur builds
MIPS: ptrace.h: Add a missing include
MIPS: ath79: Fix compilation error when CONFIG_PCI is disabled
MIPS: MSP71xx: Remove compilation error when CONFIG_MIPS_MT is present
MIPS: Octeon: Remove special case for simulator command line.
MIPS: tlbex: Properly fix HUGE TLB Refill exception handler
MIPS: loongson2_cpufreq: Fix CPU clock rate setting mismerge
pci: pci-lantiq: remove duplicate check on resource
MIPS: Lasat: Add missing CONFIG_PROC_FS dependency to PICVUE_PROC
MIPS: cp1emu: Fix ISA restrictions for cop1x_op instructions
- Enable 48-bit VA space now that KVM has been fixed, together with
a couple of fixes for pgd allocation alignment and initial memblock
current_limit. There is still a dependency on !ARM_SMMU which needs to
be updated as it uses the page table manipulation macros of the host
kernel
- eBPF fixes following changes/conflicts during the merging window
- Compat types affecting compat_elf_prpsinfo
- Compilation error on UP builds
- ASLR fix when /proc/sys/kernel/randomize_va_space == 0
- DT definitions for CLCD support on ARMv8 model platform
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Catalin Marinas:
- enable 48-bit VA space now that KVM has been fixed, together with a
couple of fixes for pgd allocation alignment and initial memblock
current_limit. There is still a dependency on !ARM_SMMU which needs
to be updated as it uses the page table manipulation macros of the
host kernel
- eBPF fixes following changes/conflicts during the merging window
- Compat types affecting compat_elf_prpsinfo
- Compilation error on UP builds
- ASLR fix when /proc/sys/kernel/randomize_va_space == 0
- DT definitions for CLCD support on ARMv8 model platform
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: Fix memblock current_limit with 64K pages and 48-bit VA
arm64: ASLR: Don't randomise text when randomise_va_space == 0
arm64: vexpress: Add CLCD support to the ARMv8 model platform
arm64: Fix compilation error on UP builds
Documentation/arm64/memory.txt: fix typo
net: bpf: arm64: minor fix of type in jited
arm64: bpf: add 'load 64-bit immediate' instruction
arm64: bpf: add 'shift by register' instructions
net: bpf: arm64: address randomize and write protect JIT code
arm64: mm: Correct fixmap pagetable types
arm64: compat: fix compat types affecting struct compat_elf_prpsinfo
arm64: Align less than PAGE_SIZE pgds naturally
arm64: Allow 48-bits VA space without ARM_SMMU
Pull two sparc fixes from David Miller:
1) Fix boots with gcc-4.9 compiled sparc64 kernels.
2) Add missing __get_user_pages_fast() on sparc64 to fix hangs on
futexes used in transparent hugepage areas.
It's really idiotic to have a weak symbolled fallback that just
returns zero, and causes this kind of bug. There should be no
backup implementation and the link should fail if the architecture
fails to provide __get_user_pages_fast() and supports transparent
hugepages.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
sparc64: Implement __get_user_pages_fast().
sparc64: Fix register corruption in top-most kernel stack frame during boot.
as what I usually had for the _whole_ rc period.
There are a few bad bugs where the guest can OOPS or crash the host. We
have also started looking at attack models for nested virtualization;
bugs that usually result in the guest ring 0 crashing itself become
more worrisome if you have nested virtualization, because the nested
guest might bring down the non-nested guest as well. For current
uses of nested virtualization these do not really have a security
impact, but you never know and bugs are bugs nevertheless.
A lot of these bugs are in 3.17 too, resulting in a large number of
stable@ Ccs. I checked that all the patches apply there with no
conflicts.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
"This is a pretty large update. I think it is roughly as big as what I
usually had for the _whole_ rc period.
There are a few bad bugs where the guest can OOPS or crash the host.
We have also started looking at attack models for nested
virtualization; bugs that usually result in the guest ring 0 crashing
itself become more worrisome if you have nested virtualization,
because the nested guest might bring down the non-nested guest as
well. For current uses of nested virtualization these do not really
have a security impact, but you never know and bugs are bugs
nevertheless.
A lot of these bugs are in 3.17 too, resulting in a large number of
stable@ Ccs. I checked that all the patches apply there with no
conflicts"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
kvm: vfio: fix unregister kvm_device_ops of vfio
KVM: x86: Wrong assertion on paging_tmpl.h
kvm: fix excessive pages un-pinning in kvm_iommu_map error path.
KVM: x86: PREFETCH and HINT_NOP should have SrcMem flag
KVM: x86: Emulator does not decode clflush well
KVM: emulate: avoid accessing NULL ctxt->memopp
KVM: x86: Decoding guest instructions which cross page boundary may fail
kvm: x86: don't kill guest on unknown exit reason
kvm: vmx: handle invvpid vm exit gracefully
KVM: x86: Handle errors when RIP is set during far jumps
KVM: x86: Emulator fixes for eip canonical checks on near branches
KVM: x86: Fix wrong masking on relative jump/call
KVM: x86: Improve thread safety in pit
KVM: x86: Prevent host from panicking on shared MSR writes.
KVM: x86: Check non-canonical addresses upon WRMSR
- Fix regression in xen_clocksource_read() which caused all Xen guests
to crash early in boot.
- Several fixes for super rare race conditions in the p2m.
- Assorted other minor fixes.
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Merge tag 'stable/for-linus-3.18-b-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen bug fixes from David Vrabel:
- Fix regression in xen_clocksource_read() which caused all Xen guests
to crash early in boot.
- Several fixes for super rare race conditions in the p2m.
- Assorted other minor fixes.
* tag 'stable/for-linus-3.18-b-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen/pci: Allocate memory for physdev_pci_device_add's optarr
x86/xen: panic on bad Xen-provided memory map
x86/xen: Fix incorrect per_cpu accessor in xen_clocksource_read()
x86/xen: avoid race in p2m handling
x86/xen: delay construction of mfn_list_list
x86/xen: avoid writing to freed memory after race in p2m handling
xen/balloon: Don't continue ballooning when BP_ECANCELED is encountered
Here are a chunk of small fixes since rc1: two PCM core fixes, one is
a long-standing annoyance about lockdep and another is an ARM64 mmap
fix. The rest are a HD-audio HDMI hotplug notification fix, a fix for
missing NULL termination in Realtek codec quirks and a few new
device/codec-specific quirks as usual.
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Merge tag 'sound-3.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Here are a chunk of small fixes since rc1: two PCM core fixes, one is
a long-standing annoyance about lockdep and another is an ARM64 mmap
fix.
The rest are a HD-audio HDMI hotplug notification fix, a fix for
missing NULL termination in Realtek codec quirks and a few new
device/codec-specific quirks as usual"
* tag 'sound-3.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda - Add missing terminating entry to SND_HDA_PIN_QUIRK macro
ALSA: pcm: Fix false lockdep warnings
ALSA: hda - Fix inverted LED gpio setup for Lenovo Ideapad
ALSA: hda - hdmi: Fix missing ELD change event on plug/unplug
ALSA: usb-audio: Add support for Steinberg UR22 USB interface
ALSA: ALC283 codec - Avoid pop noise on headphones during suspend/resume
ALSA: pcm: use the same dma mmap codepath both for arm and arm64
Heiko Carstens